If you draw this card with your normal draw during your Draw Phase, you can keep it revealed in your hand. At the start of your Main Phase 1, if you drew this card with your normal draw during the Draw Phase of this turn and it has been revealed in your hand since then: You can activate this card; Special Summon 1 "Number" monster from "101" to "107", except a "Number C" monster, from your Graveyard or Extra Deck. Then, Special Summon from your Extra Deck, 1 "Number C" monster whose name contains the same number as the Special Summoned monster, by using it as the Xyz Material. (This Special Summon is treated as an Xyz Summon.) You can only activate the effect of "Rank-Up-Magic The Seventh One" once per Duel.